1. Write a program to calculate the area of triangle using formula A=(s(s-a)(s-b)(s-c))^1/2

SOURCE CODE:

#include <stdio.h>

#include<math.h>

int main()

{   float a,b,c,s,A;

    printf("enter the sides of triangle\n");

    scanf("%f %f %f",&a,&b,&c);

    s=(a+b+c)/2.0;

    A=sqrt(s*(s-a)*(s-b)*(s-c));

    printf("Area of the triangle is %f",A);

    return 0;

}